(Click CC for subtitles) Descending to remarkable depths below the sea on one single breath, Alessia Zecchini enters what she describes as the last quiet place on Earth. The Italian champion is determined to set a new world record in freediving, a dangerous extreme sport in which competitors attempt to reach the greatest depth without the use of scuba gear. Freedivers are often subject to blackouts upon ascent, necessitating the help of safety divers like Stephen Keenan, a free-spirited Irish adventurer who fell in love with the sport in Dahab, Egypt.
Having formed a special bond on the freediving circuit, Alessia and Stephen train together to make an attempt on Dahab’s legendary Blue Hole and its challenging 85-foot-long tunnel 184 feet below the Red Sea, their fates inextricably bound together.

The jeweled-encrusted pectoral of King Tut is a hieroglyphic artefact of stunning craftsmanship and one of the greatest treasures of the pharaohs. Was this ancient glass scarab in Tutankhamun's tomb created by forces from beyond our world? Using new research and the latest tech, experts confront the ancient mystery of its flawless glass scarab.
Is a 4,000 year old clay tablet the original instruction manual for Noah's ark? And how can a bizarre red moon rock contain signs of life?

We take it for granted, but every time we pick up a pen or type on the keyboard, we are employing the most powerful technology ever invented: the technology of writing. Explore how the invention of writing gave humanity a history. From hieroglyphs to emojis, the series is an exploration of the way in which the technology of writing has shaped the world we live in.
The invention of writing about 5,000 years ago made civilization itself possible, and every innovation of the modern world is based on the foundation of the written word. But how and where did writing begin, and who began it? In From Pictures to Words, the first of three films about the history of writing, we uncover the hidden links between all the diverse writing systems in use today and trace the origin of our own alphabet to a turquoise mine in the Sinai Desert and a man riding a donkey whose name was Khebded.

Join a team of local archaeologists as they excavate never before explored passageways, shafts, and tombs, while piecing together the secrets of one of the most jaw-dropping, exciting, and important Ancient Egyptian discoveries in decades. News of the tomb discovery has gone around the world and it has been heralded as the most significant find in almost fifty years.
The condition of the tomb is remarkable - but the real excitement lies in what is to come. The archaeologists hope they are going to unearth the possessions, grave goods, and mummies of the high-priest and his family - and with that information hoping to transform our understanding of this period of Old Kingdom history.

An unassuming 80-year-old device that has the appearance of a typewriter could actually be one of the greatest secret weapons in history. Using cutting-edge digital technology, experts investigate the secrets of a revolutionary encryption machine.
How could there be a carving of a modern helicopter on an ancient Egyptian inscription? can this 800-year-old device covered in strange sayings really predict the future?

Feast your eyes on a reconstruction of the mega-city and its amazing buildings. Alexandria, built in the middle of rancid marshland, had become in less than a century, the greatest city of the Mediterranean. An ideal position at the crossroads of east and west, and one that brought her great riches. Huge, modern, gleaming white and cosmopolitan, like no other in antiquity, it created its own identity.
While the beauty of its planning, its great arteries, its temples and its ports would be equalled only by its openness to the rest of the world. And the monumental achievements of its sovereigns, still shrouded in mystery, we'll never cease to fire our imagination for millennia to come.